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1dolinski/iteration.rb

Created April 25, 2013 10:56
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iteration.rb
def add_listener(listener)
(@listeners ||= [] << listener)
end
add_listener("chris")
@listeners && @listeners.each do |x| # why not just @listeners.each ??
puts x
end
@mikebaldry
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mikebaldry commented Apr 25, 2013 

  @listeners = []

  def add_listener(listener)
    @listeners << listener
  end

  add_listener("chris")


  @listeners.each do |x| 
    puts x
  end

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